We are happy to announce the availability of
-ontop- v1.18
a Java framework to query ontologies with mappings to databases.
If you are interested in virtual RDF graphs, R2RML mappings and/or
RDFS/OWL2QL reasoning, then -ontop- is for you. The system implements
the cutting edge SPARQL-to-SQL and query optimisation techniques that
allow it to answer SPARQL queries using SQL databases while obtaining
great performance.
With -ontop-, you don't need to move your data from your already
efficient database in order to enjoy the benefits of the RDF data
model, the SPARQL query language or RDF/OWL2QL inference.
And there is no need for expensive ETL or forward/backward chaining either.
You can use -ontop- from command line, as a Java API, as a SPARQL
end-point, or as a Protege plugin.
After the deployment to -ontop- v1.17 to Protege plugin repository, we have
received many feedback and bug reports,
most of which are addressed in this new release.
The highlights of this new release include:
- Improvement of Protege plugin
-- Redesigned materialization action dialog
-- Upgrade to Protege 5.0.0 (latest version)
-- Numerous bug fixes
- Support of SPARQL querying of annotation property assertions in the
ontology
- Support of the use of owl:sameAs in mappings
- Upgrade OWLAPI to v4.2.5
Further details in:
https://github.com/ontop/ontop/wiki/OntopReleases#v1.18.0
The system is available for FREE at
http://ontop.inf.unibz.it/
If you are a protege user, you will receive the new version of -ontop-
plugin automatically.
Please, try it out and help us improve it by sending us your feedback.
Tell us how YOU are using -ontop-!
https://github.com/ontop/ontop/wiki/UseCases
Cheers,
The -ontop- development team
Website: http://ontop.inf.unibz.it
Documentation: https://github.com/ontop/ontop/wiki
Github: https://github.com/orgs/ontop/
Follow us on Facebook: https://www.facebook.com/obdaontop
Twitter: https://twitter.com/ontop4obda
--
Guohui Xiao, PhD
Assistant Professor with a fixed-term contract
KRDB - Faculty of Computer Science
Free University of Bozen-Bolzano
Piazza Domenicani, 3
I-39100 Bolzano, Italy
http://www.ghxiao.org
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